Hi .. As a new member it is best to stick with established sellers with feedback from satisfied buyers. Ebay has strict rules for sellers and non compliance will result in restriction or suspension.
Ebay provides Buyer Protection for items not received or not as described (damaged, fake etc)..
http://pages.ebay.ca/help/buy/paypal-buyer-protection.html
Claims should be filed no later than day 43 from payment date.
Good luck.